We conclude this section with two examples of motion under the action of a variable force.

下面我们举两个关于物体在变力作用下运动的例子来结束这一节。

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We conclude this section with two examples of motion under the action of a variable force.

下面我们举两个关于物体在变力作用下运动的例子来结束这一节。

youdao